DIY E Ink Screen Smart NFC APP Case for IPhone

Product Description : 

• PePhoto projection phone case allows you to create custom designs via phone APP, express your current mood with a fast refresh.
• Screen display support 4 colors, red, yellow, black and white.
• NFC Sensor Projection:
  The case uses NFC technology for wireless transfer, requiring no battery or ,
  and maintains the display content even when the phone is switched off.
• The smart phone case provides a precise fit with accurately cut holes, which ensures easy button access and does not interfere with the use of external accessories.
• Display Screen Size: 3.52 inches .
• Function: Project pictures to the phone case screen via NFC, no battery power .
• Material : TPU